Mixing-machine.



W. O. STARK. MIXING MACHINE APPLICATION FILED SEPT. 5, 1005v 903,51 6.

Patented Nov. Hi 1908.

4 SHEETS-SHEET 1. v

W. D. STARK.

MIXING MACHINE.

L APPLICATION FILED SEPT.5, 1905 903% 1 6.

Patented Nov. 10, 1908.

4 SHEETS-SHEET 2.

p. Zita/1g W: 0. STARK.

MIXING MACHINE.

4 SHEETS-SHEET 3.

v APPLICATION FILED SEPT. 5, 1905. 903,516: I Patented NOV. 10, 1908.

Elixir-m unumuummm luumu W. O. STARK.

MIXING MACHINE.

APPLICATION FILED swans. 1905.

93,51 6; Patented Nov. 10, 1908 4 SHEETS-SHEET 4,

a side'at right angles to the plane of Fig. 2.

and is provided with a suitable inlet opening nsure sa ar es PATENT WILLIAM O. STARR, OF CHICAGO, ILLINOIS, ASSIGNOR TO FREDERICK (J. AUSTIN, OF

CHICAGO, ILLINOIS.

MIXING MACHINE.

Specification of Letters Patent.

' Application filed September 5, 1905. Serial No. 277,086.

Patented Nov; 10, mos.

To all wlzom it may concern:

Be it known that 1, WILLIAM G. STARK, a citizen of the United States, residing at Ohicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Mixing-Machines, of which the following is a specification.

My invention relates to mixing machines for mixing concrete, mortar and the like, and more particularly to machines of such class in which a cubiform or olyhedric mixing receptacle is employed. 11 using a cubiform mixing receptacle or the mixing receptacle having a discharge passage for the concrete at a point intersected by several sides of the structure, the operation oi producing concrete is rapid, effective, and satisfactory. But in mixing cement mortar in mixing machines, the material is apt to form balls, and where the interior of the mixer isdevoid of teeth or blades, these balls or lumps of material are not always satisfactorily broken up.

Objects of my invention are, to overcome the foregoing stated objectionable features.

In the accompanying drawings: Figure l, is a top plan view of a mixing machine embodying the principles of my invention, a portion of the mixing receptacle being broken away. Fig. 2, a side elevation of the mixing machine with the mixing receptacle in position for discharge, a portion of the mixing receptacle being broken away. Figs. 3, 4 and 5, r re details of removable plates with rods for breaking up or prevent ing the formation of balls or large lumps of mortar cement during the process of mixing. Fig. (5, shows the mixing machine in elevation viewed from Fig. 7, is another view of the mixing re -ep tacle partially broken awayand illustrating an arrangement of mixing rods somewhat longer than the mixing rods shown in preceding figures. Fig. 8, is another view of the mixing receptacle shown in Fig. 7, partially broken away. 7

A indicates the mixing rece )taclc which is rcvolubly mounted u on a tilting frame B. The mixing receptaco shown is cubilorin atone corner portion, and with a suitable discharge opening at the diagonally opposite corner portion, it being understood that said corner portions are out away for the purpose of providing said openings. The discharge opening is provided. with a discharge spout or nozzle 1 and as illustrated in Fi s. 1 and 2, (l

indicates a portion of a charging chute or the frame B is supported to tilt.

in the first six figures of the drawings,- the means for breaking u the material consists of rods 5, secured to p ates or strips 6, which are-rcInov-ably secured to the inner sides of. the mixing receptacle. Each one of these plates or strips 6 is provided with a series of rods 5 and the latter are of a length to form aseries of teeth projecting inwardly from the plates within the n'iixing space of the inking receptacle. These material breaking devices are somewhat in the nature of a set of rakes each detachably secured to one of the cube sheets by bolts 7, and arranged to extend from one cube corner to the diagonally opposite cube corner opening, it being observed that in the arrangement shown three oi these plates or SbI'lPSCXtGYlLl from the inlet corner portion of the cube to diagonally opposite corners of the cube sheets, and that the remaining three 01 said plates or strips ez rtend from the opposite cut away corner portion of the cube to diagonally opposite corners of the cube sheets, whereby three of said stripsalternate with the remaining three of said strips.

in Figs. 7 and 8, the rods E are arranged parallel with the axis of rotation of the mixing receptacle and extend through the sides of the latter. These rods E can be secured in any suitable way, as for example, by belts or nuts. Dining operation the rods whether inade short like the rods 5, or long like the rods E, will tend to break up the material and. prevent the formation of balls or large lumps. It will not be necessary to use the rods for mixing concrete and when the machine is to be used for such'purpose, the rods can be removed. In order to remove the rods 5, the plates or stri s 6, can been bolted and removed throng 1 one of the opt.

D indicates a wheel supported carriage or body-frame having uprights 4 upon which ings of the mixing receptacle.

The rods E may, however, be Permitted to remain in place if preferred, it though, they can 'be removed and in such case the openings or such rods can then be closed by screw plugs, or

any other suitable closing device.

What I claim as my invention is: 1. In a mixing machine, a tilting frame, a

rotary tilting cubiform or polyhedrie mixing IOCGYUIClO mounted on said tilting frame to revo ve about a diagonal axis and provided with a set of internal mixing and breaker rods SUDI'NHlUl within the mixing rece taele 1n annular series and arranged paralle wlth and around the axis of rotation.

2. In a mixing machine, a rotary tilting cubiform or polyhedric mixing rece tacle mounted to revolve about a diagonal axis and provided with internal plates or strips having mixing and breaker rods, the said;

WILLIAM O. STARK.

Witnesses AUGUST Bmjrzun, R. B. 131mm. 

